string root = @"C:\users";

string root2 = @"C:\Users";

​

bool result = root.Equals(root2, StringComparison.OrdinalIgnoreCase);

bool areEqual = String.Equals(root, root2, StringComparison.OrdinalIgnoreCase);

int comparison = String.Compare(root, root2, comparisonType: StringComparison.OrdinalIgnoreCase);

​

Console.WriteLine($"Ordinal ignore case: <{root}> and <{root2}> are {(result ? "equal." : "not equal.")}");

Console.WriteLine($"Ordinal static ignore case: <{root}> and <{root2}> are {(areEqual ? "equal." : "not equal.")}");

if (comparison < 0)

    Console.WriteLine($"<{root}> is less than <{root2}>");

else if (comparison > 0)

    Console.WriteLine($"<{root}> is greater than <{root2}>");

else

    Console.WriteLine($"<{root}> and <{root2}> are equivalent in order");